Attachment for



(No Model.)

0. G'. JONES.

' ATTACHMENT FOR ROAD SGRAPERS.

No. 352,133. Patented Nov. 9, 1886.

0 fif 0 E 'i a f w o a T L I a Z c 4? F1G3 J I t z 5 i P B R .17 1 [E Q 0 Q 3 o M N. PETERS. Pboko-Lilhcgnphnr. Wmhington. 03C.

U ITED STATES PATENT Games.

0. GEORGE JONES, OF RIPLEY', MAINE.

ATTACHMENT FOR ROAD-SCRAPERS.

EBPECIFICATION forming part of Letters Patent No. 352,133, dated November 9, 1886. 7 Application filed June 12, 1886. Serial No. 205,032. (No model.) i

which my application for Letters Patent was filed March 26, 1886, wherein the body-frame carrying the scraper proper is adj ustably suspendedfrom the rear axle.

It consists of a. device for, holding the scraper proper down when adjusted foruse and in operation, and in certain other features of secondaryimportance, hereinafter explained, and is illustrated in the in which- Figure 1 is a side elevation of my scraper and attachments,with one hind wheel removed and the axle in section. Fig. 2 is a front elevation of the holding-down device. Fig. 3 is a plan showing guideJwith standard 0 in section.

Similar letters refer to corresponding parts throughout the figures.

In the scraper described in my application filed March 26, 1886, the scraper proper is pivoted to the. under side of a body-frame,

which is suspended from standards upon each end of the rear axle by ropes or chains wound upon shafts or windlasses having bearings in said standards, appropriate mechanism being provided for operating said wiudlasses in either direction, either separately or together, andso raising or lowering one or both body-frame and scraper. In the accompanying drawings I show a machine ofsimilar construction, and although two sets of the raising and holding-down mechanism are used--one upon each end of the rear axle- I have, for convenience, shown but one, asthe sides of the I two are counterparts of each other.

a is a side piece of the body-frame. A is the rear axle. Y B is a double standard attached to the axle, and formed of the parts 6 and 6.

accompanying drawings,

' D is a shaft or Windlass supported in bearings in the standard B.

e is a ratchet upon said shaft, andf a pawl S, in the side piece, a, of the body-frame, is attached at its other end to some convenient point upon theaxle or the fixtures thereon, as at the hook t.

M is the scraper proper, pivoted upon the bolt H, and held in position by the stop N. The Whole body-frame and scraper M are suspended by the chain F and its counterpart, and

raised and lowered, as desired, by the opera-' tion of the windlasses. This is the construction described in my application filed March -26,- 1886, and provides no means of holding the frame and scr'aper down when in use.

To accomplishthe latter obj ect,I provide a rigid standard,0, preferably archcd,as shown, its lower extremities being in enlarged sockets U in the side piece, a, of the body-frame in such manner as to allow for the canting and oscillation ofthe frame. The standard projects vertically to a convenient height above the axle A, and preferably above the Windlass D, and carries, at or near its top, a pulley, P. A holding-down line, Q, passing over said pulley, is attached at one end upon said windlass and wound thereon, so that when the Windlass is operated it shall be taken up when the suspension-line F is paid out and shall be paid out as the suspension-line is taken up. The other end of the holding-down line is made fast tosorne convenient point upon the standard B or axle A, as at O.

To compensate for any slight inequalities in theadjustment of the suspension-linefiF and holding-down line Q, and to thus insure an equal and simultaneous operation through both, I provide an adjusting-hook,0, to which one end of one of the lines (preferably, and as shown the holding-down line Q) is attached.

The book 0 slides longitudinally andyertically in the guides 3 and z'upon the standard ICO B, and, having the lower extremity of its shank screw-threaded,'is fitted with a winged nut, R, which, being operated, the hook is raised or lowered in the guides y z, and the holding-down line is thus adjusted as desired. A rubber spring or cushion, L, may be applied between the guide 2 and the winged nut R, and the effect of a sudden jar or strain thus modified. I have further provided a guide, J, to support and steady the standard 0 and keep it upright.

The whole holding-down device is duplicated, so as to operate upon both sides of the frame.

The operation of my improvement will be readily understood. The holding-down line Q, passing over the pulley I? on the standard 0, and attached at one end to the Windlass D and-at the other to the standard 13 or axle A, (either directly or through the hook 0,) prevents any upward movement of the standard O,and the standard 0 bearing upon the bodyframe, prevents the frame, and scraper M as well, from rising. lVhen the scraper is to be raised, the Windlass is operated, the suspension-line wound upon the Windlass lifting the frame and scraper, while the holding-down line simultaneously unwinds upon the windlass and permits the rising of the standard 0 and the frame and scraper. \Vhen the scraper is to be lowered,the operation of the Windlass is reversed.

The purpose and operation of the hook O has already been described.

Having thus desclibed my invention,what I claim, and desire to secure by Letters Patent, 1s

1. In a roadscraper wherein the body-frame carrying the scraper proper is suspended from the axle,a device for holding down said bodyframe, consisting of a pair of upright standards bearing upon and projecting upward from said frame on each side thereof, a pair of holding-down lines having attachments to the rear axle or the fixtures thereof at points below the tops of said standards and passing over said standards near their tops in such manner as to hold said standards down upon said fra1ne,and mechanism for actuating said holding-down lines, substantially as described.

2. In a road-scraper wherein the body-frame carrying the scraper proper is adj ustably suspended from theaxle by suspension-lines attached at one end to windlasses having bcar- 5o ings in standards fixed upon said axle and at the other to convenient points upon said axle or the fixtures thereon, a device for holding down said body-frame, consisting of a pair of upright standards bearing upon and projecting 5 5 upward from said frame on each side thereof, and a pair of holding-down lines having attachments at one end to the axle or the fixtures thereon at points below the tops of said upright standards, and at the other end attachmentsto said windlasses at points opposite the attachments of said suspensiou-lines,and passing over said upright standards near their tops in such manner as to hold said upright, standards down upon said frame,substantially as described.

3. In a road-scraper wherein the body-frame carrying the scraper proper is adjustably sus' pended from the axle, the adjusting-hook 0, guides 3/ z, and winged nut R, in combination with the body-frame, the axle, the standard B, the windlass,the standard 0, the holding-down line, and the suspension-line, substantially as described.

4. The herein-described holding-down device for road-scrapers,wl1erein the body-frame is adjustably suspended from the axle, consisting of the combination of the standard 0, having pulley P, guide J, holding-down line Q, and Windlass D, with the body-frame and scraper, the axle, the standard B, and the suspension-line, substantially as described.

5. The herein-described holding-down device for road-scrapers, wherein the body-frame is adjustably suspended ,from the axle, consisting of the combination of the standard 0, having pulley 1?, guide J, holding-down line Q, Windlass D, and adjusting-hook O,with the body-frame and scraper, the axle, the standard B, and the suspension-line, substantially as described.

O. GEORGE JONES.

\Vitnesscs:

M. M. WARDWELL, Isaac R. CLARK. 

